<p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "宋体"; color: #ff0000; font-size: 10.5pt; mso-spacerun: "yes";">2A11<span quot;font-family: 宋体;">铝板</span></span><span quot;font-family: "宋体"; color: #ff0000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">材料名称：<span quot;font-family: ˎ̥;">2A11</span><span quot;font-family: 宋体;">旧称：</span><span quot;font-family: ˎ̥;">LY11</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">主要特性及应用：</span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">这是应用较早的一种硬铝，一般称为标准硬铝，具有中等强度，在退火、刚淬火和热切期望状态下可塑性好，热处理强化，在淬火和自然时效状态下使用，点焊焊接性良好，用<span quot;font-family: ˎ̥;">2A11</span><span quot;font-family: 宋体;">作焊料进行及氩弧焊时有裂纹的倾向；包铝板有良好的稳定性，不包铝的则抗蚀性不高，在加热超过</span><span quot;font-family: ˎ̥;">1000C</span><span quot;font-family: 宋体;">有产生晶间腐蚀倾向，表面阳较氧化和涂漆能可靠地保护挤压与锻造零件免于腐蚀。可切削在淬火时效状态尚好，在退火状态时不良。</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">化学成分</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　化学成分： </span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　硅<span quot;font-family: ˎ̥;">Si</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.7 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　铁<span quot;font-family: ˎ̥;">Fe: 0.7 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　铜<span quot;font-family: ˎ̥;">Cu</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">3.8-4.8 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　锰<span quot;font-family: ˎ̥;">Mn</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.40-0.8 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　镁<span quot;font-family: ˎ̥;">Mg</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.40-0.8 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　锌<span quot;font-family: ˎ̥;">Zn</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.30 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　钛<span quot;font-family: ˎ̥;">Ti</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.15 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　镍 <span quot;font-family: ˎ̥;">NI</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.1 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　铁<span quot;font-family: ˎ̥;">+</span><span quot;font-family: 宋体;">镍</span><span quot;font-family: ˎ̥;">Fe+Ni</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">0.50 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　铝<span quot;font-family: ˎ̥;">Al</span><span quot;font-family: 宋体;">：余量 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　其他： </span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　单个<span quot;font-family: ˎ̥;">:0.05</span><span quot;font-family: 宋体;">；合计</span><span quot;font-family: ˎ̥;">:0.10 </span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">   </span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">力学性能： </span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　抗拉强度 <span quot;font-family: ˎ̥;">σb (MPa) ) ≥370 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　条件屈服强度 <span quot;font-family: ˎ̥;">σ0.2 (MPa) )≥215 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　伸长率 <span quot;font-family: ˎ̥;">δ5 (</span><span quot;font-family: 宋体;">％</span><span quot;font-family: ˎ̥;">)</span><span quot;font-family: 宋体;">：</span><span quot;font-family: ˎ̥;">≥12 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　注 ：棒材室温纵向力学性能 </span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　试样尺寸：棒材直径<span quot;font-family: ˎ̥;">(</span><span quot;font-family: 宋体;">方棒、六角棒内切圆直径</span><span quot;font-family: ˎ̥;">)≤150 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　<span quot;font-family: ˎ̥;">2A11</span><span quot;font-family: 宋体;">铝合金热处理规范： </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　<span quot;font-family: ˎ̥;">1) </span><span quot;font-family: 宋体;">均匀化退火：加热</span><span quot;font-family: ˎ̥;">480</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">495</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">℃</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">；保温<span quot;font-family: ˎ̥;">12</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">14h</span><span quot;font-family: 宋体;">；炉冷。</span><span quot;font-family: ˎ̥;">2)</span><span quot;font-family: 宋体;">完全退火：加热</span><span quot;font-family: ˎ̥;">390</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">430</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">℃</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">；保温时间<span quot;font-family: ˎ̥;">30</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">120min</span><span quot;font-family: 宋体;">；空冷。</span><span quot;font-family: ˎ̥;">3)</span><span quot;font-family: 宋体;">快速退火：加热</span><span quot;font-family: ˎ̥;">350</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">370</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">℃</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">；保温时间为<span quot;font-family: ˎ̥;">30</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">120min</span><span quot;font-family: 宋体;">；空冷。</span><span quot;font-family: ˎ̥;">4)</span><span quot;font-family: 宋体;">淬火和时效：淬火</span><span quot;font-family: ˎ̥;">495</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">510</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">℃</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">,<span quot;font-family: 宋体;">水冷；人工时效</span><span quot;font-family: ˎ̥;">155</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">165</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">℃</span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">，<span quot;font-family: ˎ̥;">6</span><span quot;font-family: 宋体;">～</span><span quot;font-family: ˎ̥;">10h,</span><span quot;font-family: 宋体;">空冷；自然时效：室温</span><span quot;font-family: ˎ̥;">96h</span><span quot;font-family: 宋体;">。 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">2A11<span quot;font-family: 宋体;">铝合金状态：铝及铝合金挤压棒材</span><span quot;font-family: ˎ̥;">(≤150mm,H112</span><span quot;font-family: 宋体;">、</span><span quot;font-family: ˎ̥;">T4</span><span quot;font-family: 宋体;">态</span><span quot;font-family: ˎ̥;">)</span></span><span quot;font-family: "宋体"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">2A12<span quot;font-family: 宋体;">铝板</span><span quot;font-family: ˎ̥;">GB/T3180-97</span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <p class="p0" quot;margin-top: 0pt; margin-bottom: 0pt;"><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";">　　特性及适用范围：为一种高度度硬铝<span quot;font-family: ˎ̥;">,</span><span quot;font-family: 宋体;">可进行热处理强化</span><span quot;font-family: ˎ̥;">,</span><span quot;font-family: 宋体;">在退火、刚淬火和热状态下可塑性中等</span><span quot;font-family: ˎ̥;">,</span><span quot;font-family: 宋体;">点焊焊接性良好，用气焊和氩弧焊时有形成晶间裂纹的倾向</span><span quot;font-family: ˎ̥;">;</span><span quot;font-family: 宋体;">合金在淬火和冷作硬化后可切削性能尚好，在退火状态时不良。抗蚀性不高</span><span quot;font-family: ˎ̥;">,</span><span quot;font-family: 宋体;">常采用阳较氧化处理与涂漆方法或表面加包铝层以提高抗腐蚀能力。 </span></span><span quot;font-family: "ˎ̥"; color: #000000; font-size: 10.5pt; mso-spacerun: "yes";"></span></p> <!--EndFragment-->